condition	mean	min	max
0 h after light	19.637050000000002	19.3205	19.9536
4 h after light	20.217	19.8345	20.5995
8 h after light	14.30185	13.4985	15.1052
4 h after dark	16.17385	14.4759	17.8718
8 h after dark	17.7283	17.5072	17.9494
12 h after dark	16.8381	15.1773	18.4989